Intro to Stoichiometry Review

Find the mass of 11.37 mol of BaO. Round to the nearest whole number.

• 1,354 g

• 1,740 g

• 17.40 g

• 1,684 g

Determine the number of moles of AlNO₃ that are in 264 g of the compound.

• 2.97 mol

• 3.45 mol

• 2.73 mol

• 1.86 mol

Find the mass of 5.82 mol of MgCl₂. Round to the nearest tenth.

• 552.9 g

• 436.8 g

• 55.2 g

• 555.9 g

Determine the number of moles of Mg₃P₂ that are in 583 g of the compound.

• 2.9 mol

• 6.1 mol

• 4.3 mol

• 1.7 mol

What is the mass of 0.75 moles of (NH₄)₃PO₄?

• 101.75 g
• 121.75 g
• 111.75 g
• 131.75 g

When you are solving for molecules, atoms, and particles you always use what number?

• 6.02 X 10²³

• Lucky 7

• Guess

• 24

If you have moles on top, what do you need on the bottom of the conversion factor to be?

• atoms

• particles

• grams

• moles

If you have particles on top, what do you need on the bottom of the conversion factor to be?

• atoms

• particles

• grams

• moles

How many molecules are in 27.5 grams of NaOH

• 41.4 molecules

• 4.14 x 10²³ molecules

• 4.14 x 10²⁵ molecules

• 1.83 x 10^-21 molecules

How many moles are in 2.85 x 10¹⁸ atoms of iron, Fe?

• 41.4 molecules

• 4.14 x 10²³ molecules

• 4.14 x 10²⁵ molecules

• 1.83 x 10^-21 molecules